Finding the Fourth Proportional to 2,434.27, 3,358.90 and 1,439.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.27 : 3,358.90 = 1,439.18 : x
2. Step 2: Convert to fraction form
   2,434.27/3,358.90 = 1,439.18/x
3. Step 3: Cross multiply
   2,434.27x = 3,358.90 × 1,439.18
4. Step 4: Simplify right side
   2,434.27x = 4,834,061.70
5. Step 5: Solve for x
   x = 4,834,061.70/2,434.27
6. Step 6: Final answer
   x = 1,985.84